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Author, Editor

Author(s):

Kautz, Jan
Sloan, Peter-Pike
Snyder, John

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Not MPG Author(s):

Sloan, Peter-Pike
Snyder, John

Editor(s):

Debevec, Paul
Gibson, Simon

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dblp

Not MPII Editor(s):

Debevec, Paul
Gibson, Simon

BibTeX cite key*:

Kautz:2002:FAB

Title, Booktitle

Title*:

Fast Arbitrary BRDF Shading for Low-Frequency Lighting Using Spherical Harmonics

Booktitle*:

Proceedings of the 13th Eurographics Workshop on Rendering

Event, URLs

URL of the conference:

http://vcg.iei.pi.cnr.it/egrw02.htm

URL for downloading the paper:

http://www.mpi-sb.mpg.de/~jnkautz/projects/shbrdf/shbrdfRW02.pdf

Event Address*:

Pisa, Italy

Language:

English

Event Date*
(no longer used):

-- June, 26 - June, 28, 2002

Organization:

Eurographics

Event Start Date:

26 June 2002

Event End Date:

28 June 2002

Publisher

Name*:

ACM

URL:


Address*:

San Francisco, USA

Type:


Vol, No, Year, pp.

Series:


Volume:


Number:


Month:

June

Pages:

291-296

Year*:

2002

VG Wort Pages:

9

ISBN/ISSN:

1-58113-534-3

Sequence Number:


DOI:




Note, Abstract, ©


(LaTeX) Abstract:

Real-time shading using general (e.g., anisotropic) BRDFs has so far been limited to a few point or directional light sources. We extend such shading to smooth, area lighting using a low-order spherical harmonic basis for the lighting environment. We represent the 4D product function of BRDF times the cosine factor (dot product of the incident lighting and surface normal vectors) as a 2D table of spherical harmonic coefficients. Each table entry represents, for a single view direction, the integral of this product function times lighting on the hemisphere expressed in spherical harmonics. This reduces the shading integral to a simple dot product of 25 component vectors, easily evaluatable on PC graphics hardware. Non-trivial BRDF models require rotating the lighting coefficients to a local frame at each point on an object, currently forming the computational bottleneck. Real-time results can be achieved by fixing the view to allow dynamic lighting or vice versa. We also generalize a previous method for precomputed radiance transfer to handle general BRDF shading. This provides shadows and interreflections that respond in real-time to lighting changes on a preprocessed object of arbitrary material (BRDF) type.



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Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Computer Graphics Group

Audience:

Expert

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort



BibTeX Entry:

@INPROCEEDINGS{Kautz:2002:FAB,
AUTHOR = {Kautz, Jan and Sloan, Peter-Pike and Snyder, John},
EDITOR = {Debevec, Paul and Gibson, Simon},
TITLE = {Fast Arbitrary {BRDF} Shading for Low-Frequency Lighting Using Spherical Harmonics},
BOOKTITLE = {Proceedings of the 13th Eurographics Workshop on Rendering},
PUBLISHER = {ACM},
YEAR = {2002},
ORGANIZATION = {Eurographics},
PAGES = {291--296},
ADDRESS = {Pisa, Italy},
MONTH = {June},
ISBN = {1-58113-534-3},
}


Entry last modified by Christine Kiesel, 03/12/2010
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Editor(s)
Jan Kautz
Created
07/02/2002 05:01:25 PM
Revisions
5.
4.
3.
2.
1.
Editor(s)
Christine Kiesel
Thomas Annen
Christine Kiesel
Jan Kautz
Jan Kautz
Edit Dates
29.08.2003 10:37:24
13.08.2003 10:11:24
08.05.2003 16:04:09
04/12/2002 11:33:26
02/07/2002 17:01:59
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